The aequorin instantly emits light when triggered by calcium ions -- a substance that is produced when the bioagent-induced cascade occurs in the B cell.
The paper reports a method and a spectropolarimeter for determining the polarization state of an emitted or reflected light in terms of its Stokes parameters.
It also emits natural phytocide to keep air fresh, and keep people's mind clear, and emit the far infrared ray to improve the blood circulation to relieve the fatigue.
In a testing of petrolic engine, about 70% to 80% of nonmethane hydrocarbon is emitted into atmosphere without catalysis conversion in theoment of coldstart, so that serious pollution is produced.